/**
 * request 网络请求工具
 * 更详细的 api 文档: https://github.com/umijs/umi-request
 */
import { extend } from "umi-request";
import { notification } from "antd";

import { stringify } from "querystring";

const codeMessage = {
  200: "服务器成功返回请求的数据。",
  201: "新建或修改数据成功。",
  202: "一个请求已经进入后台排队（异步任务）。",
  204: "删除数据成功。",
  400: "发出的请求有错误，服务器没有进行新建或修改数据的操作。",
  401: "用户没有权限（令牌、用户名、密码错误）。",
  403: "用户得到授权，但是访问是被禁止的。",
  404: "发出的请求针对的是不存在的记录，服务器没有进行操作。",
  406: "请求的格式不可得。",
  410: "请求的资源被永久删除，且不会再得到的。",
  422: "当创建一个对象时，发生一个验证错误。",
  500: "服务器发生错误，请检查服务器。",
  502: "网关错误。",
  503: "服务不可用，服务器暂时过载或维护。",
  504: "网关超时。",
};
/**
 * 异常处理程序
 */

const errorHandler = (error) => {
  const { response } = error;

  if (response && response.status) {
    const errorText = codeMessage[response.status] || response.statusText;
    const { status, url } = response;
    notification.error({
      message: `请求错误 ${status}: ${url}`,
      description: errorText,
    });
  } else if (!response) {
    notification.error({
      description: "您的网络发生异常，无法连接服务器",
      message: "网络异常",
    });
  }

  return response;
};
/**
 * 配置request请求时的默认参数
 */

export const request = extend({
  errorHandler,
  // 默认错误处理
  credentials: "include", // 默认请求是否带上cookie
  requestType: "form",
  noToken: true,
});

export async function getRefresh(token) {
  return request(
    `/api/oauth/refresh?grant_type=refresh_token&refresh_token=${token.refresh_token}`,
    {
      method: "post",
    }
  );
}

/**
 * 配置oAuth请求时的默认参数
 */
export const authRequest = extend({
  errorHandler,
  // 默认错误处理
  credentials: "include", // 默认请求是否带上cookie
  requestType: "form",
});

authRequest.interceptors.request.use(async (url, options) => {
  const temp = { ...options };
  if (!temp.noToken) {
    let token = localStorage.getItem("token");
    if (token) {
      token = JSON.parse(token);
      temp.headers = {
        Authorization: `Bearer ${token.access_token}`,
      };
    }
  }

  return {
    url,
    options: {
      ...temp,
    },
  };
});

let refreshFlag = true;
authRequest.interceptors.response.use(async (response) => {
  const data = await response.clone().json();
  if (data && data.code === 400) {
    // 检查token
    const redirect = window.location.href;
    const queryString = stringify({
      redirect,
    });

    let token = localStorage.getItem("token");

    if (token) {
      token = JSON.parse(token);

      if (token.expiry) {
        const current = new Date().getTime();
        const expiry = new Date(token.expiry).getTime();
        // 如果失效获取refresh token
        if (current >= expiry) {
          window.console.log("失效了");
          // 获取新token
          if (refreshFlag) {
            refreshFlag = false;
            const refresh = await getRefresh(token);

            if (refresh.error) {
              localStorage.removeItem("token");
            } else {
              localStorage.setItem("token", JSON.stringify(refresh));
              window.location.href = redirect;
              return false;
            }
          }
        }
      }
    }

    window.location.href = `/user/login?${queryString}`;
  }
  return response;
});
